JP2021013873A - Decomposition treatment apparatus - Google Patents

Abstract

To provide a decomposition treatment apparatus which suppresses power consumption and can produce compost with less residue of raw refuse.SOLUTION: A decomposition treatment apparatus 1 includes a treatment tank 11, a heating part 16, a temperature sensor 29, agitation mechanisms 12, 13 and 14, a fan 22 and a control part 28, in which the control part 28 can select one mode from a plurality of modes including a standard mode of controlling the heating part so that the temperature of the treatment tank is controlled within a fixed range between a first temperature and a second temperature, and making the fan in an operation state when the temperature of the treatment tank is lower than the first temperature and making the fan in a non-operation state when it is higher than the second temperature, and making the agitation mechanisms in the operation state when the temperature of the treatment tank is lower than the first temperature and makes the fan when it is higher than the second temperature, and a decay mode.SELECTED DRAWING: Figure 2

Description

The present invention relates to a decomposition processing apparatus.

Conventionally, a decomposition treatment device has been developed in which food waste and the like are discarded in a treatment tank containing a treatment material carrying microorganisms, and the food waste is decomposed by microorganisms to generate compost. In such a decomposition treatment apparatus, in order to improve the efficiency of food waste treatment, a heater is arranged on the side surface of the treatment tank, and air is introduced into the treatment tank while maintaining the temperature inside the treatment tank at a temperature at which the activity of microorganisms is activated. By supplying oxygen, oxygen required for fermentation by aerobic microorganisms is supplied (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 7-24436

Here, if the temperature in the treatment tank is too high, the microorganisms are killed, and if the treatment temperature is too low, the kitchen waste is not decomposed, so that there is an appropriate temperature range. Further, even within this temperature range, when air is supplied, the temperature drops due to the flowing air, so if the high temperature is maintained for a long time, the power consumption becomes large. On the other hand, even within this temperature range, if the temperature is low, the kitchen waste may not be completely decomposed and a residue may remain.
An object of the present invention is to provide a decomposition treatment apparatus capable of producing compost with a small amount of food waste residue without increasing power consumption.

The present invention includes a processing tank in which a treatment object is housed, a heating unit for heating the treatment tank, a temperature sensor for measuring the temperature inside the treatment tank, and the treatment housed in the treatment tank. A stirring mechanism for stirring an object, an air supply mechanism for supplying air to the inside of the processing tank, a heating unit, a temperature sensor, a stirring mechanism, and a control unit for controlling the air supply mechanism are provided. The control unit controls the heating unit so that the temperature inside the processing tank is kept within a certain range between the first temperature and the second temperature higher than the first temperature. Then, the air supply mechanism is put into an operating state when the temperature inside the processing tank falls below the first temperature when the air supply mechanism is not operating, and the processing tank is operated when the air supply mechanism is operating. When the temperature inside the treatment tank exceeds the second temperature, the temperature inside the treatment tank is lowered to the first temperature, and the temperature inside the treatment tank is lowered to the first temperature when the stirring mechanism is inactive. The standard mode in which the stirring mechanism is in the operating state and the temperature inside the processing tank exceeds the second temperature in the operating state, and the heating unit is set in the processing tank. The temperature of the air supply mechanism is constantly inactive, and the temperature inside the processing tank is the temperature of the stirring mechanism in the non-operating state. When the temperature falls below the first temperature, it is put into an operating state, and when the stirring mechanism is in an operating state and the temperature inside the processing tank exceeds the second temperature, it is put into a non-operating state, which is higher than the second temperature. Provided is a decomposition processing apparatus capable of selecting one mode from a plurality of modes including a ripening mode, which is operated for a certain period of time when the temperature reaches a third temperature or higher.

In the plurality of modes, the heating unit is controlled so that the temperature inside the processing tank is maintained within the fixed range, and the air supply mechanism is controlled so that the temperature inside the processing tank is the first. When it is higher than the temperature, it is always operated, and the stirring mechanism is put into an operating state when the temperature inside the processing tank falls below the first temperature while the stirring mechanism is not operating, and the stirring mechanism is in the operating state. A drying mode may be further provided in which the inside of the processing tank is put into an inactive state when the temperature inside the treatment tank exceeds the second temperature.

Further, the present invention is a disassembly processing device including a main body portion and a lid portion that can be opened and closed with respect to the main body portion, and the main body portion includes a processing tank in which an object to be processed is housed and stirred. An intake air having a heating unit for heating the treatment tank, a temperature sensor for measuring the temperature inside the treatment tank, a stirring mechanism for stirring the treatment object inside the treatment tank, and an intake structure for sucking air. A first space including a passage and an exhaust passage for exhausting air, the lid portion communicating with the intake passage in a state of being in contact with the main body portion, and having a first opening opening to the processing tank. And a second space having a second opening that communicates with the exhaust passage and opens to the processing tank, and the air taken in by the intake structure enters the first space through the intake passage. Is sent from the first space to the processing tank through the first opening.
Provided is a decomposition processing apparatus which is sent from the processing tank to the second space through the second opening and is exhausted from the second space to the outside through the exhaust passage.

The first opening and the second opening may have an area larger than the cross section of the intake passage and the exhaust passage perpendicular to the direction in which the air flows.

The ceiling surface of the portion of the second space to which the exhaust passage is connected to the lower portion may be curved so as to be concave upward.

A plurality of streaky ridges extending parallel to each other along the bending direction may be formed on the ceiling surface.

The exhaust passage is connected to the second space and has a portion extending downward from the second space, the portion has an opening at the bottom, and the opening communicates to the outside of the decomposition processing apparatus. You may be doing it.

Further, the present invention includes a processing tank in which an object to be processed is housed, a stirring shaft extending inside the processing tank, and a stirring blade attached to the stirring shaft, and the processing tank has a bottom wall portion. The distance between the front wall portion and the rear wall portion of the treatment tank in a cross section orthogonal to the stirring axis, which has a front wall portion and a rear wall portion, becomes narrower as it goes down, and the bottom thereof. The wall portion provides a decomposition processing apparatus having an arc shape with a central angle of 180 degrees or more.

The rear wall portion extends vertically, and the front wall portion tilts with respect to the vertical direction so that the lower end thereof narrows the distance between the rear wall portion and the front wall portion and the bottom wall portion. Corners may be formed between them.

It is possible to provide a decomposition treatment apparatus capable of producing compost with a small amount of food waste residue without increasing power consumption.

It is a front view of the kitchen waste processing apparatus 1 which decomposes and treats the kitchen waste as a processing object. It is sectional drawing along the longitudinal direction of the kitchen waste processing apparatus 1. It is sectional drawing which follows the short side direction of the kitchen waste processing apparatus 1. It is a perspective view of the main body 2 in a state where the housing front plate 10F and the housing left plate 10L are removed. It is a perspective view of the main body 2 with the housing front plate 10F, the housing left plate 10L, and the housing right plate 10R removed, and is a view seen from different angles. It is a block diagram explaining the control system of the kitchen waste processing apparatus 1 including the operation unit 26, the display unit 27, and the control unit 28. It is a bottom view of the lid part 3. FIG. 7 is a cross-sectional view taken along the line AA of the lid portion 3 of FIG. Is a cross-sectional view of FIG. 7 in the BB direction. Is a perspective view of a portion of the lid portion 3 above the CC line in FIG.

FIG. 1 is a front view of a kitchen waste processing device (decomposition processing device) 1 that decomposes and processes kitchen waste as a processing object. FIG. 2 is a cross-sectional view of the kitchen waste disposal device 1 along the longitudinal direction. FIG. 3 is a cross-sectional view of the kitchen waste disposal device 1 along the lateral direction.
The kitchen waste treatment device 1 has a main body portion 2 and a lid portion 3. Hereinafter, when the kitchen waste treatment device 1 is arranged in a normal use state, the main body 2 side is down, the lid 3 side is up, the longitudinal direction of the kitchen waste treatment device 1 is left and right, and the short hand of the kitchen waste treatment device 1. The direction will be described as front and back. The vertical direction of this embodiment is a vertical direction. 2 and 3 are cross-sectional views cut in a vertical plane along the longitudinal direction.

(Main body 2)
The main body 2 includes a housing 10, a processing tank 11 arranged inside the housing 10, and a stirring shaft 12 extending to the left and right below the center of the inside of the processing tank 11.

(Case 10)
The housing 10 is composed of a housing upper plate 10U, a housing left plate 10L, a housing right plate 10R, a housing front plate 10F, a housing rear plate 10B, and a housing bottom plate 10D. FIG. 4 is a perspective view of the main body 2 with the housing front plate 10F and the housing left plate 10L removed, and FIG. 5 shows the housing front plate 10F, the housing left plate 10L, and the housing in the main body 2. It is a perspective view in a state where the right plate 10R of the body is removed, and is a view seen from different angles.

(Treatment tank 11)
The treatment tank 11 is a tank in which the treatment material S for culturing microorganisms is stored and the kitchen waste N is charged. As the material of the treatment tank 11, for example, stainless steel, which is not easily corroded, easily conducts heat, and is not easily damaged, is used.

As shown in FIG. 3, the treatment tank 11 includes a rear wall portion 11B, a front wall portion 11F, and a curved bottom wall portion 11W in a vertical cross section. The treatment tank 11 has a box shape in which the upper portion is opened by the rear wall portion 11B, the front wall portion 11F, the curved bottom wall portion 11W, the right wall portion 11R shown in FIG. 2 and the like, and the left wall portion 11L. It becomes.

The curved bottom wall portion 11W has an arc shape that is a part of the circumference centered on the stirring shaft 12 or a shape close to the arc shape in the vertical cross section shown in FIG. 3, and the central angle of the arc is larger than 180 ° and 270 °. Hereinafter, in the embodiment, it is about 225 °.
The rear end of the curved bottom wall portion 11W is at a horizontal position substantially the same as the stirring shaft 12, and the front end of the curved bottom wall portion 11W is above the horizontal position substantially the same as the stirring shaft 12. That is, the curved bottom wall portion 11W extends from the rear end at substantially the same horizontal position as the stirring shaft 12 to the front side along the circumference, and exceeds the same horizontal position as the stirring shaft 12 on the front side, and the stirring shaft It extends above 12.
The rear end of the curved bottom wall portion 11W is smoothly continuous with the rear wall portion 11B extending vertically (vertically). The front end (upper end) of the curved bottom wall portion 11W is continuous with the front wall portion 11F, which is a slope inclined with respect to the vertical (vertical) direction, forming a corner portion 11K. That is, the corner portion 11K protrudes inside the processing tank 11.
In other words, the rear wall portion 11B extends vertically, and the front wall portion 11F is tilted so that the lower end thereof is narrower with respect to the rear wall portion 11B in the vertical direction. A corner portion 11K is formed between the 11F and the curved bottom wall portion 11W.

(Stirring shaft 12)
The stirring shaft 12 extends left and right inside the processing tank 11. The stirring shaft 12 is rotated by a stirring motor 13 arranged outside the processing tank 11.

(Stirring blade 14)
Three stirring blades 14 are attached to the stirring shaft 12. However, the number of stirring blades 14 is not limited to 3. The stirring blade 14 is fixed to the tip of a holding arm 15 extending in the radial direction of the stirring shaft 12. The stirring blade 14 is a rectangular plate member, and is attached obliquely to the stirring shaft 12.
It is preferable that the distance between the end side of the stirring blade 14 on the outer diameter side in the radial direction about the stirring shaft 12 and the inner surface of the processing tank 11 is narrow unless they come into contact with each other.
Like the treatment tank 11, the stirring shaft 12, the stirring blade 14, and the holding arm 15 are also made of, for example, stainless steel, which is resistant to corrosion, heat transfer, and damage.

(Stirring motor 13)
The stirring shaft 12 extends to the outside of the processing tank 11, and the stirring motor 13 is directly attached to the portion extending to the outside. Since no gear is arranged between the stirring shaft 12 and the stirring motor 13, assembly is easy.
A stirring mechanism is formed by the stirring shaft 12, the stirring blade 14, and the stirring motor 13.

(Effect of processing tank 11)
For example, a general treatment tank as a comparative embodiment is composed of a curved bottom wall portion, a rear wall portion, and a front wall portion in the same cross section as in FIG. However, the curved bottom wall is semi-circular, that is, the central angle is 180 °. The rear wall portion and the front wall portion extend vertically (vertically) in parallel with each other, and the distance between them is constant. The rear wall portion and the front wall portion are smoothly continuous from the curved bottom wall portion, and the corner portions as in the present embodiment are not formed.

On the other hand, in the embodiment, as described above, the curved bottom wall portion 11W has a shape along the circumference, but the central angle is 225 °, which is larger than the semicircular 180 °.
When the kitchen waste N is thrown in, the kitchen waste N rotates together with the stirring blade 14 while being stirred by the stirring blade 14. At this time, if it is sandwiched between the inner wall of the processing tank 11 and the stirring blade 14, it is crushed.
In the embodiment, since the central angle of the curved bottom wall portion W is 225 °, the angle at which the kitchen waste N rotates together with the stirring blade 14 is larger than that in the comparative embodiment in which the central angle is 180 °. Therefore, the amount of crushed food waste N increases. Therefore, the decomposition rate of kitchen waste is faster than that of the comparative form of the treatment tank.

Further, not only is it crushed, but also the contact time between the kitchen waste N and the stirring blade 14 is lengthened, so that the kitchen waste N is stirred better as compared with the comparative form, and this also causes the decomposition rate of the kitchen waste N. Becomes faster.

Further, the front wall portion 11F is tilted so that the lower end thereof has a narrower distance from the rear wall portion 11B with respect to the vertical direction. That is, since the front wall portion 11F is slanted, the horizontal cross-sectional area of the treatment tank 11 gradually decreases toward the bottom, and is horizontal at the corner portion 11K of the boundary between the front wall portion 11F and the curved bottom wall portion 11W. The cross-sectional area is the smallest.
Further downward, the portion surrounded by the curved bottom wall portion W on which the kitchen waste N is processed has a large horizontal cross-sectional area.

That is, a sufficient opening area is secured in the upper part of the treatment tank 11 for charging the kitchen waste N, and a sufficient area for stirring is secured in the curved bottom wall portion W where the stirring is performed. However, the cross-sectional area is small at the upper end of the curved bottom wall portion W.
The inside of the curved bottom wall portion W where stirring is performed is heated as described later to promote fermentation decomposition, but since the cross-sectional area is smaller at the upper end of the curved bottom wall portion W, it is compared with the comparative form. , Heat is not easily released to the outside of the curved bottom wall portion W. Therefore, since the heat retaining effect in the curved bottom wall portion W is high, fermentation decomposition can be promoted and the load on the heater 16 can be reduced, so that power consumption can be reduced.

(Heater 16)
As shown in FIGS. 4 and 5, a film-shaped heater 16 is attached to the outer surface of the curved bottom wall portion 11W of the processing tank 11.
(Temperature sensor)
Further, the processing tank 11 is also provided with a temperature sensor (shown in FIG. 6 described later) for measuring the internal temperature of the processing tank 11.

(Treatment material S)
The processing material S to be mixed with the kitchen waste N is wood fragments such as sawdust, rice husks, rice bran, soil and the like, and carries microorganisms. Microorganisms aerobically decompose the supplied food waste N. That is, the various organic substances constituting the kitchen waste N are reduced in molecular weight, and finally decomposed into gas, water, inorganic salts and the like. Most of the microorganisms are bacteria previously supported on the treatment material S, but other filamentous fungi, yeast, actinomycetes and the like are also included.
Zeolites and the like are also incorporated inside the exhaust passage 21, and offensive odor components such as ammonia generated during fermentation are removed.

(Intake path 20)
As shown in FIGS. 2, 4 and 5, an air intake path 20 extending vertically is provided on the right side of the processing tank 11. The upper end 20u of the intake passage 20 is open to the housing upper plate 10U of the main body 2.
A fan 22 is attached to the lower side surface of the intake passage 20. When the fan 22 rotates, air flows into the intake passage 20 from the intake port 22a provided on the side surface of the housing 10.

(Exhaust path 21)
An L-shaped extending air exhaust path 21 is provided on the left side of the processing tank 11.
The upper end 21u of the vertically extending vertical portion 21a of the L-shape of the exhaust passage 21 is open to the housing upper plate 10U of the main body portion 2. A hole 21b is provided at the lower end of the vertical portion 21a, and a drainage pipe 24 is connected to the hole 21b. The drainage pipe 24 extends to the housing bottom plate 10D of the housing 10 and is connected to the drainage hole 24a provided in the housing bottom plate 10D.

A removable container 25 is attached to the vertical portion 21a. The bottom of the removable container 25 is provided with a plurality of openings 25a through which water can flow out, and a filter (not shown) is arranged.
As will be described later, the solid matter that has fallen into the removable container 25 is removed by a filter, flows through the opening 25a at the bottom to the drain pipe 24 through the hole 21b of the vertical portion 21a, and passes through the drain pipe 24 to the housing. It flows out from the drain hole 24a of the bottom plate 10D.
Further, the horizontal portion 21c extending to the left from the lower portion of the vertical portion 21a in the exhaust passage 21 is open to the outside from the housing left plate 10L of the housing 10.

(Control unit 28)
As shown in FIG. 4 and the like, an operation unit 26 is provided on the housing upper plate 10U, a control unit 28 is provided under the housing upper plate 10U, and a display unit 27 is provided on the housing front plate 10F as shown in FIG. It is provided.
FIG. 6 is a block diagram illustrating a control system of the kitchen waste processing device 1 including an operation unit 26, a display unit 27, and a control unit 28.

The control unit 28 receives the signal from the temperature sensor 29 and controls the operations of the stirring motor 13, the fan 22, and the heater 16.

The operation unit 26 is provided with a power switch 26a for turning on / off the main power supply and a mode selection switch 26b.

The display unit 27 includes a power supply display unit 27a that displays power ON / OFF, and a mode display unit that indicates which selection mode the operation mode of the kitchen waste disposal device 1 described later is. The mode display unit is a standard mode display unit 27b that lights up in green when the standard mode is selected, and a drying mode display unit that lights up in green when the drying mode is selected and blinks when the drying mode ends. It has a ripening mode display unit 27d that lights up in green when the ripening mode is selected and blinks when the ripening mode ends.

(Cover 3)
7 is a bottom view of the lid portion 3, FIG. 8 is a sectional view taken along the line AA of the lid portion 3 of FIG. 7, FIG. 9 is a sectional view taken along the line BB of FIG. 7, and FIG. It is a perspective view of the part above the CC line.

The lid portion 3 is pivotally supported by the main body portion 2 and can be opened and closed by holding the handle 31 and swinging with respect to the main body portion 2. Further, the lid portion 3 can be attached and detached by removing the portion axially supported by the main body portion 2. Since it is removable in this way, the lid 3 can be removed for cleaning.

The lid portion 3 is provided with a lid portion upper plate 3U and a lid portion lower plate 3D, and two spaces, a first space 32 and a second space 33, are provided between the lid portion upper plate 3U and the lid portion lower plate 3D. There is.
The lid lower plate 3D has a first intake port 32a and a first opening 32b which are openings for the first space 32, and a second opening 33a and a second exhaust port 33b which are openings for the second space 33. It is provided.
The first opening 32b of the first space 32 and the second opening 33a to the second space 33 have substantially the same size, and are provided in a portion of the lid lower plate 3D that covers the upper part of the processing tank 11. .. Filters are attached to the first opening 32b and the second opening 33a, respectively.
The first opening 32b has a larger area than the first intake port 32a, and the second opening 33a has a larger area than the second exhaust port 33b.

The inner surface (ceiling portion) 33c of the lid upper plate 3U provided with the second space 33 is curved as shown in FIG. 9, and the front and rear are low and the central portion is high, that is, the upper side with respect to the second space 33. It is curved so that it becomes concave. Further, a plurality of streaky ridges extending in the front-rear direction in parallel with each other are formed on the inner surface 33c.

Returning to FIG. 2, according to the embodiment, when the lid portion 3 is closed with respect to the main body portion 2, the upper end 20u of the intake passage 20 opening to the housing upper plate 10U of the main body portion 2 and the first space By facing the first intake port 32a of 32, the intake passage 20 and the first space 32 communicate with each other.
The first opening 32b of the first space 32 and the second opening 33a of the second space 33 face the upper opening of the processing tank 11.
The upper end 21u of the exhaust passage 21 opened in the housing upper plate 10U of the main body 2 and the second exhaust port 33b of the second space 33 face each other, so that the exhaust passage 21 and the second space 33 communicate with each other. To do.
As a result, an air supply mechanism is formed from the fan 22 to the intake passage 20, the first space 32, the processing tank 11, the second space 33, and the exhaust passage 21.

According to this air supply mechanism, external air is taken into the intake passage 20 by the rotation of the fan 22. Air flows into the first space 32 through the upper end 20u of the intake passage 20 and the first intake port 32a. The air that has flowed into the first space 32 flows into the processing tank 11 through the first opening 32b.
The air that has flowed into the treatment tank 11 absorbs moisture and the like contained in the kitchen waste N and flows into the second space 33 through the second opening 33a.
Moisture in the air that has flowed into the second space 33 condenses on the inner surface 33c of the second space 33, and flows in the front-rear direction along the ridges that are curved back and forth on the inner surface 33c.
The flowing water flowed into the removable container 25 through the second exhaust port 33b and the vertical portion 21a, passed through the opening 25a at the bottom of the removable container 25, flowed into the drain pipe 24 through the hole 21b, and flowed into the drain pipe 24. Moisture flows through the drainage pipe 24 and flows out from the drainage hole 24a.
The air that has flowed into the second space 33 flows into the removable container 25 through the second exhaust port 33b and the vertical portion 21a, flows to the horizontal portion 21c through the opening 25a at the bottom of the removable container 25, and flows out to the outside. Will be done.

In this way, the air that has flowed into the intake passage 20 is once flowed into the first space 32, and then flows into the processing tank 11 through the first opening 32b provided in the upper part of the processing tank 11.
Here, since the first opening 32b has a larger area than the intake passage 20, air can be sent to the processing tank 11 at a slower wind speed than when flowing through the intake passage 20.
Further, once the air is stored in the first space 32, the flow velocity is decelerated by the filter and air flows into the first opening 32b at a uniform flow velocity.
When the flow velocity is slowed down in this way, the hoisting of the processing material S and the kitchen waste N is reduced, and the scattering of microorganisms and the diffusion of odors are reduced. In addition, since the flow velocity becomes uniform, the supply of oxygen becomes uniform and the bias of fermentation is reduced.

Further, the moisture in the air that has flowed into the second space 33 condenses on the inner surface 33c of the second space 33, flows back and forth along the ridge portion, and aggregates at the front and rear ends of the inner surface 33c of the second space 33. Easy to fall down.
Moisture that has aggregated and dropped flows into the removable container 25 through the second exhaust port 33b and the vertical portion 21a, passes through the opening 25a at the bottom of the removable container 25, and flows from the hole 21b to the drain pipe 24. Since the water that has flowed into the drainage pipe 24 is transmitted through the drainage pipe 24 and flows out from the drainage hole 24a, the water does not collect in the kitchen waste treatment device 1. Therefore, it is not necessary to take out the water from the kitchen waste treatment device 1.

(control)
Next, the control of the kitchen waste treatment device 1 by the control unit 28 will be described. The control unit 28 controls the kitchen waste treatment device 1 in three modes: a standard mode, a drying mode, and a ripening mode. Each will be described below.

(Standard mode)
The standard mode is a normal mode in which the kitchen waste N charged into the treatment tank 11 is composted.
When the user turns on the power switch 26a of the operation unit 26, the power display unit 27a and the standard mode display unit 27b of the display unit 27 light up in green.

The control unit 28 turns on the heater 16 to start heating the processing tank 11, and also starts measuring the temperature inside the processing tank 11 by the temperature sensor 29. At the same time, the stirring motor 13 is turned on. As a result, the stirring shaft 12 and the stirring blade 14 rotate, and stirring of the mixture of the processing material S and the kitchen waste N is started. During operation, the stirring motor 13 repeats a cycle of forward rotation 30 seconds, stop 10 seconds, and reverse rotation 30 seconds. Further, the fan 22 is turned on and off in conjunction with the stirring motor 13.

The control unit 28 turns off the heater 16 when the temperature inside the processing tank 11 reaches 54.5 ° C. (second temperature) or higher. Then, when the temperature in the processing tank 11 becomes 52 ° C. (first temperature) or less, the heater 16 is turned on. As a result, the temperature inside the treatment tank 11 is maintained at 52 ° C to 54.5 ° C.

The control unit 28 turns off the stirring motor 13 when the temperature inside the processing tank 11 reaches 54.5 ° C. or higher. Then, when the temperature in the processing tank 11 becomes 52 ° C. or lower, the stirring motor 13 is turned on again.

The control unit 28 stops the control at 54.5 ° C. Further, the control unit 28 turns the fan 22 for 1 minute when the temperature exceeds 54.5 ° C. for 10 minutes while the control is stopped. As a result, the temperature inside the treatment tank 11 can be lowered, and the water content in the kitchen waste N can be reduced.
According to the standard mode, the mixture of sawdust S and kitchen waste N is kept at an appropriate temperature of 52 ° C. to 54.5 ° C., and is agitated while being sucked.
According to the embodiment, since the operation of the kitchen waste treatment device 1 is controlled by the temperature of the treatment tank 11, the power consumption can be suppressed. That is, according to the embodiment, the operation of the kitchen waste treatment apparatus 1 is controlled based on the temperature in the treatment tank 11 in which the heat generated by the fermentation of the kitchen waste N (bacterial bed) inside the treatment tank 11 is added. As a result, overheating by the heater 16 in a state where the fungus bed has heat can be prevented. As a result, excessive electrical heating can be prevented, and energy consumption can be suppressed.

(Drying mode)
The drying mode is, for example, a mode in which water is further removed when the compost produced is taken out after the standard mode or the ripening mode described below is performed, and the compost is dried for ease of work.
For example, when the user presses the mode selection switch 26b of the operation unit 26 once while operating in the standard mode, the standard mode display unit 27b is turned off and the dry mode display unit 27c is turned on in green. Further, when the user presses the mode selection switch 26b of the operation unit 26 twice while operating in the ripening mode, the ripening mode display unit 27b is turned off and the drying mode display unit 27c is turned on in green.

The difference between the drying mode and the standard mode is that the control unit 28 continues to drive the fan 22 instead of intermittent operation after starting the rotation of the fan 22 at a temperature in the processing tank 11 of 52 ° C. That is, in the drying mode, the control unit 28 does not stop the fan 22 and continues the drive even when the temperature in the processing tank 11 exceeds the second temperature (54.5 ° C.). Since the parts other than the fan 22 are the same as the standard mode, the description thereof will be omitted.
The control unit 28 automatically stops the operation of the kitchen waste treatment device 1 after continuing the drying mode for 5 hours unless the operation unit 26 is operated by the user.
According to the drying mode, since the compost is dried, a feeling of cleanliness can be obtained at the time of handling, and the compost can be easily sprinkled.

(Ripe mode)
The ripening mode is, for example, a mode in which the compost is further ripened when the compost produced by the standard mode is taken out. For example, it is preferable that the compost produced in the standard mode is aged in the aging mode and finally dried in the drying mode for removal.
For example, when the user presses the mode selection switch 26b of the operation unit 26 twice while operating in the standard mode, the standard mode display unit 27b is turned off and the ripening mode display unit 27d is turned on in green. Further, when the user presses the mode selection switch 26b of the operation unit 26 once while operating in the drying mode, the drying mode display unit 27b is turned off and the ripening mode display unit 27d is turned on in green.

The difference between the ripening mode and the standard mode is that the heater 16, the stirring motor 13, and the fan 22 are turned off by the control unit 28 at the second temperature (54.5 ° C.), and then the fan 22 is always turned off. Is. Other points are the same as in the standard mode, so the description thereof will be omitted.
The control unit 28 automatically stops the operation of the kitchen waste treatment device 1 after continuing the ripening mode for 24 hours unless the operation unit 26 is operated by the user.

According to the ripening mode, since the fan 22 is OFF, even when the heater 16 is OFF, the decomposition proceeds and the temperature inside the processing tank 11 rises.
Here, if the temperature inside the treatment tank 11 rises too much, the microorganisms may also die, the treatment material S cannot be continuously used, and new microorganisms need to be added. Therefore, when the temperature inside the processing tank 11 becomes 60 ° C. (third temperature) or higher, the stirring motor 13 is started for 30 seconds. As a result, the temperature drops to some extent.
After that, the temperature inside the tank is measured every 30 minutes, and it is turned on when the temperature is 60 ° C or higher and turned off when the temperature is lower than 60 ° C. This makes it possible to eliminate or reduce the possibility that the temperature will reach 60 ° C. or higher.
By using this ripening mode, the temperature in the treatment tank 11 rises from that in the standard mode, so that the microorganisms are actively activated and the undecomposed residue in the kitchen waste N can be matured at once. This reduces the possibility of germination disorders when compost ripened in the ripening mode is used as compared to compost produced in the standard mode alone.

S processing material (sawdust)
1 Processing device 2 Main body 3 Lid 10 Housing 11 Processing tank 11B Rear wall 11F Front wall 11K Square 11W Curved bottom wall 12 Stirring shaft 13 Stirring motor 14 Stirring blade 15 Holding arm 16 Heater 20 Intake passage 20u Upper end 21 Exhaust passage 21b Hole 21u Upper end 22 Fan 22a Intake port 24 Drain pipe 24a Drain hole 25 Detachable container 25a Open 26 Operation unit 27 Display 28 Control unit 29 Temperature sensor 32 1st space 32a 1st intake 32b 1st opening 33 2nd space 33a 2nd opening 33b 2nd exhaust port

Claims (9)

A treatment tank that houses the object to be treated and
A heating unit that heats the treatment tank
A temperature sensor that measures the temperature inside the processing tank and
A stirring mechanism for stirring the object to be treated contained in the treatment tank, and a stirring mechanism.
An air supply mechanism that supplies air to the inside of the treatment tank,
The heating unit, the temperature sensor, the stirring mechanism, and the control unit for controlling the air supply mechanism are provided.
The control unit
The heating unit is controlled so that the temperature inside the treatment tank is maintained within a certain range between the first temperature and the second temperature higher than the first temperature.
The air supply mechanism is put into an operating state when the temperature inside the processing tank falls below the first temperature when the air supply mechanism is not operating, and the inside of the processing tank is operated when the air supply mechanism is operating. When the temperature of the above exceeds the second temperature, the non-operating state is set.
The stirring mechanism is put into an operating state when the temperature inside the processing tank falls below the first temperature when the stirring mechanism is not operating, and the temperature inside the processing tank is raised when the stirring mechanism is operating. In the standard mode, which is inactive when the temperature exceeds the second temperature,
The heating unit is controlled so that the temperature inside the treatment tank is maintained within the constant range.
The air supply mechanism is always inactive to keep it inactive.
The stirring mechanism is put into an operating state when the temperature inside the processing tank falls below the first temperature when the stirring mechanism is not operating, and the temperature inside the processing tank is raised when the stirring mechanism is operating. A ripening mode in which the temperature is deactivated when the temperature exceeds the second temperature and is operated for a certain period of time when the temperature rises above the third temperature, which is higher than the second temperature.
A disassembly processing device that can select one mode from multiple modes including. The plurality of modes are
The heating unit is controlled so that the temperature inside the treatment tank is maintained within the fixed range.
When the temperature inside the processing tank is higher than the first temperature, the air supply mechanism is always operated.
The stirring mechanism is put into an operating state when the temperature inside the processing tank falls below the first temperature when the stirring mechanism is not operating, and the temperature inside the processing tank is raised when the stirring mechanism is operating. Further provided with a drying mode, which deactivates when the temperature exceeds the second temperature.
The disassembly processing apparatus according to claim 1. A disassembly processing device including a main body and a lid that can be opened and closed with respect to the main body.
The main body
A treatment tank in which the object to be treated is stored and agitated,
A heating unit that heats the treatment tank
A temperature sensor that measures the temperature inside the processing tank and
A stirring mechanism that stirs the object to be treated inside the treatment tank,
An intake path with an intake structure that sucks air,
Equipped with an exhaust path to exhaust air,
The lid portion is in contact with the main body portion.
A first space that communicates with the intake passage and has a first opening that opens into the processing tank.
A second space that communicates with the exhaust passage and has a second opening that opens into the processing tank.
With
The air taken in by the intake structure is
It is sent to the first space through the intake passage and
It is sent from the first space to the processing tank through the first opening.
It is sent from the processing tank to the second space through the second opening.
Exhausted from the second space to the outside through the exhaust passage.
Disassembly processing equipment. The first opening and the second opening are
It has an area larger than the cross section of the intake passage and the exhaust passage that is orthogonal to the direction in which the air flows.
The disassembly processing apparatus according to claim 3. In the second space, the ceiling surface of the portion where the exhaust passage is connected to the lower part is curved so as to be concave upward.
The disassembly processing apparatus according to claim 3 or 4. A plurality of streaky ridges extending parallel to each other along the bending direction are formed on the ceiling surface.
The disassembly processing apparatus according to claim 5. The exhaust passage is connected to the second space and has a portion extending downward from the second space, and the portion has an opening at the bottom.
The opening communicates with the outside of the decomposition processing apparatus.
The disassembly processing apparatus according to any one of claims 3 to 6. A treatment tank that houses the object to be treated and
A stirring shaft extending inside the treatment tank and
With a stirring blade attached to the stirring shaft,
The treatment tank has a bottom wall portion, a front wall portion, and a rear wall portion.
In the cross section orthogonal to the stirring axis, the distance between the front wall portion and the rear wall portion of the treatment tank becomes narrower as it goes down.
The bottom wall portion is a disassembly processing device having an arc shape with a central angle of 180 degrees or more. The rear wall portion extends vertically and extends.
The front wall portion is tilted with respect to the vertical direction so that the lower end thereof is narrowed in distance from the rear wall portion.
A corner portion is formed between the front wall portion and the bottom wall portion.
The disassembly processing apparatus according to claim 8.

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